Postal codes should not accept numeric type to preserve leading zeros #1232
Description
The postalCode field in zmsentities/schema/dereferenced/scope.json has been changed to accept numeric values alongside strings and null. This causes postal codes with leading zeros (e.g., "01067") to lose their formatting when processed as numbers (becoming 1067).
Postal codes should maintain their original formatting to ensure correct display and processing.
Related PR: #1230
Comment: #1230 (comment)
Reported by: @ThomasAFink